Here’s a schedule of tournaments in my area that I occassionally play in. Now I can access this from my iPhone anytime I’m driving around and want to hit a tournament that’s close by. I try to keep this up to date, but you may want to call ahead and verify.
Update 8/30/2012: Added weekly & regional/national tournaments.
Angle of Reflection 
hi mike,also there is a 10 ball tourney in crown billiards in San Ramon on Monday nights at 8 o clock.its $15.oo